Wiseco Black Edition Piston Kit TC 103 CID 9:1 Compression - Harley Twin Cam
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Specifications
| BRAND | Wiseco |
| TYPE | Black |
| SKU | K2788 |
| PART NUMBER | K2788 |
| DISPLACEMENT | 103 CID |
| COMPRESSION RATIO | 9:1 |
| COATINGS | Armor X, ArmorGlide |
| OIL RING | 3mm, higher tension |
| SECOND RING | Napier, taper face with underhook |
| WEIGHT | 2.4 lb |
| 9 | 1 Compression |
Fitment
Fits these motorcycles
Listed per manufacturer fitment data. Not sure? Email us and we confirm before you order.
The Wiseco Black Edition piston kit is a replacement piston set built for a 103 cubic inch V-twin engine, offering a 9:1 compression ratio. Wiseco positions it as a solid choice for engines running stock or modestly upgraded cylinder heads, making it a practical option for riders refreshing an engine or planning a mild performance build.
Riders choose this kit for its combination of wear-resistant coatings and a premium ring package. The Armor X piston coating is designed to reduce wear in critical areas, while the ArmorGlide skirt coating minimizes friction and improves scuff resistance. The ring package includes a Napier second ring with taper face and underhook for strong oil control, plus a 3mm oil ring with higher tension to manage oil and improve sealing.
The kit is engineered for durability and reduced operating noise, giving a dependable foundation for reliable engine builds. Whether you are replacing worn components or stepping up performance modestly, the Wiseco Black Edition pistons are designed to handle the demands of regular riding.
For off-road / closed-course race use only.
Specifications
- Brand: Wiseco
- Part Number: K2788
- Displacement: 103 CID
- Compression Ratio: 9:1
- Coatings: Armor X, ArmorGlide
- Oil Ring: 3mm, higher tension
- Second Ring: Napier, taper face with underhook
- Weight: 2.4 lbs
Common questions
What compression ratio does this piston kit have?
The Wiseco Black Edition piston kit has a 9:1 compression ratio.
What coatings are used on these pistons?
The pistons feature Armor X coating to reduce wear in critical areas and ArmorGlide skirt coating to minimize friction and improve scuff resistance.
What ring package does the kit include?
The kit uses a Napier second ring with taper face and underhook for oil control, plus a 3mm oil ring with higher tension for enhanced oil management.
